@misc{cryptoeprint:2012:418,
    author = {Rafael Martínez-Peláez and Francisco Rico-Novella},
    title = {Weaknesses of an Improvement Authentication Scheme using },
    howpublished = {Cryptology ePrint Archive, Report 2012/418},
    year = {2012},
    url = {http://eprint.iacr.org/2012/418},
}